"Banks are worried about their exposure," warns one warehousing source, "there is a scramble for people to head down there at the minute and make sure that their metal that they think is covered by a warehouse receipt actually exists." The rehypothecated catastrophe that we discussed in great detail here (copper financing), here (all commodities), and here (global contagion) appears to be gathering speed as the China's northeastern port of Qingdao has halted shipments of aluminum and copper due to an investigation by authorities after they found "there is a discrepancy in metal that should be there and metal that...